(2017·甘肃白银·10)—I wonder if these are Danny's glasses.
—They________be Danny's. He doesn't wear glasses.
A.can't B.must C.mustn't D.can
The engineer ________ is talking with my father has just come back from abroad.
A.who B.which C.whose D.whom
Please smile when you feel down! Smile can help you forget your ________.
A.weakness B.sadness C.politeness D.fairness
Tom ________coke ,but now he _________milk .
A.used to drink ; is used to drinking
B.used to drinking ; drinks
C.is used to drinking; used to drink
D.is used to drink ; is drinking
The ________ mistakes you make, the ________ your mark is.
A.less; better B.fewer; better C.most; best D.fewest; lowest
随着经济的快速发展，人类活动也对环境造成的比较大的污染。环境出现各种各样的问题。请根据以下表格选择一种阐述环境问题，造成该环境问题的原因以及减少污染的措施。
要求：1、从表格中选择一个阐述污染原因，污染的危害及措施；
2、短文条理清楚，行文连贯，内容可适当发挥；
3、短文不能出现真实的人名和地名；
4、词数不少于80，已给出句子不计入总词数。
| Problem Badly polluted… | Causes | How to solve |
Air | dirty, no more fish... | Burn coal, too many cars... | Public transportation… |
Water | Problem Badly polluted… | Throw rubbish, put the waste... | Clean up... |
With the development of the industry, human activities cause many environmental problems…___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
